Combination miner&#39;s tool.



No. 705,997. Patented July 29, |902. M. HARDSUCE.

lGOMBINATIN MINERS TOUL.

(Application led May 21, 1901.)

(No Model.)

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MARTIN HARDSOOG, OF OTTUMWA, IOWA, ASSIGNOR OF ONE-HALF TO LESTER O. HARDSOCG, OF OT'IUMWA, IOVA.l

COMBINATION lVIlNERS TOOL v.$1311CJUEICATION forming part of Letters Patent No. 705,997, dated July 29, 1902.

Application filed May 21,1901. Serial No. 61,261. (No model.)

T0 [tu whom, it may concern:

Be it known that I, MARTINHARDSOCG, a citizen of the United States of America, and a resident ofOttumWa,Wapellocounty, Iowa,

'have invented a new and useful Combination Miners Tool, of which the following is a speci-r fication. t

The object of thisinvention is to provide a tool or instrument combining several tools and having several distinct uses in connec-` tion with the operation of drilling and blasting in the occupation of mining. j l

A further object of this invention is to pro vide means for containing and protectinga miners needle, the containing means also serving a useful function extraneous to the needle.

A further object of myinvention is to provide improved means for combining a drill, a tamping-head, or cleaner with; the miners needle in such a manner that the drill, tamping-head, or cleaner will contain and protect the'needle when said. needle is not in use.

Myinvention consists of a tool hereinafter described, pointed out in my claims, and illustrated by the accompanying drawings, in Which- Figure 1 is a View of a miners needle, a portion thereof being broken away to economize space on the drawings. Fig. 2 is a side view of a combined churn-drill and tamping-bar in which is mounted for protection and convenience a miners needle. Fig.A 3 is a longitudinal section of one end portion of the device shown in Fig. 2, the needle beingrremoved. Fig. 4; is an end Viewof the tamping-bar illustrated in Fig. 2. Fig. 5 is a crosssection of the device shown in Fig. 2. Fig. 6 is a side vieW of a combined tamping-bar and cleaner. Fig. 'lis a longitudinal section of the device shown in Fig. 6. Fig. 8 is a side View of the devicewshown in Figs. 6 and 7 with a miners needle mounted therein. Fig. 9 is an end View of the tamping-bar shown in Fig. 6.

In the construction, combination, and use of myinvention the numeral 10 designates a miners needle having a loop o1- handle 11 at one end and tapering throughout its length from the handle to an attenuated and slender point at its other extremity. The needle lO preferably is made of copper to prevent a premature and inopportune explosion that other- Wise might occur through the contact of said needle With a flinty substance in a drill-hole.

The numeral 12 designates a tubular stem, ou one end of which is formed or mounted a churn-drill 13, by the use of which an excavation, hole, or bore may be made in earth, stone, coal, or other mineral substances to be encountered in mining. A tamping-head 14 is provided and mounted on the end portion of the stem l2, opposite to the drill 13. The tamping-head 14 is tubularin alinement with the bore of the stem 12 and is fixed thereto by means of an overlapping joint brazed or otherwise rigidly secured. The tamping-head 14 has a diameter approximating to the length of the cutting edge of the drill 13 at its outer end; but the circumfer ence of the outer end of the tamping-head is eccentric to the circumference of the stem 12 and is notched or grooved at 15 in its larger projecting portion. The tamping-head 14 and stem 12 are made tubular to receive the needlevlO and contain said needle to the end that the needle may be protected against bending, bruising, or other accidental damage when notin use. Furthermore, bymounting the needle in the bores of the tampinghead and stem its presence is assured at the moment it is desired for use, as hereinafter will appear.

In the practical operation or use the drill is employed to penetrate and form a bore or excavation to the desired or convenient depth. The drill is Withdrawn from the bore made by it. 'Ihe bore is cleaned or scraped to remove therefrom the loose chippings or shavings of substance detached by the drilla ing. A charge of blasting-powder or other explosive material is then placed in the closed end portion Aof the bore made by the drill, and the needle is Withdrawn from the stem and next employed by insertion, pointed end first, in the bore or excavation and with its point reaching to or entering the charge of explosive. Tamping material is then inn troduced to the bore or excavation and rammed and pounded against the charge of explosive therein by means of the tampinghead 14. Aplug of wood or other substance may be placed in the bore of the head 14, if desired, to prevent obstrnction'of said bore by the tamping material. In the use of the tamping-head within the bore or excavation the notch or groove 15 of said head straddles and slides upon the needle, the remainder of the larger diameter of said head approximately lling the bore exterior to the needle. When the tamping material has been rammed or pounded sufficiently, the needle is withdrawn, the tamping material being held against the withdrawal of the needle by the tamping-head, and a train or fuse is laid to the priming-hole formed by the needle and ignited in due course to the end that the explosive may effect its purpose.

In the above description of the use of my invention I mentioned cleaning the bore or excavation made by the drill. For this purpose I prefer to employ a tapering tube, funnel, or cleaner 16, relatively thin and shaped as a truncated cone, with its smaller end brazed or otherwise secured to one end of the stem 12 in lieu of the churn-drill 13. On the stem 12u opposite to the cleaner 16 I may employ a 'camping-head 14, having a notch 15, but not tubular. I canomit the bore from the head 14a/and introduce the needle 10 to the stem 12a through the cleaner 16 for protection and convenience in transportation.

In the use of the device illustrated in Figs. 6, 7, and 8 for cleaning the bore or excavation made by the drill the operator inserts the cleaner 16 in the bore and pushes it back as far as may be, receiving the chippings and shavings cut by the drill Within the tapering shell of the cleaner. Carefully withdrawing the cleaner and stem from the bore the operator may bring out a considerable portion of sediment, chippings, and shavings and deposit the same on the floor of the room in which he is Working. A repetition of this operation may be necessary to cleanvthe hole `being brazed or otherwise rigidly secured in the socket. The tongue 12' preferably is sov formed by rolling down or contracting one end of the tubular stem 12a, and when the needle is inserted through the cleaner 16 and stem the point thereof will seat and be protected in said tongue.

I claim as my invention- 1. A miners combination-tool comprising a tubular stem, a tubular funnel-shaped cleaner on one end of said stem and a ltamping-head on the opposite end of said stem, said tamping-head mounted eccentrically on said stem and notched radially for straddlinga miners needle when in use.

2. A miners combination-tool, comprising a stem, a tool member on one end of said stem, a tamping-head on the opposite end of said stem, said tamping-head mounted eccentrically on said stem and bored in alinement with the bore of the stem for the reception of a miners needle, said tamping head being notched for straddling the miners needle when in use.

3. A combination miners tool, comprising a tubular stem, a tool member on one end of said stem, the opposite end of said stem being reduced in cross-section, and a tampinghead mounted eccentrically on and formed with a socket arranged to receive and be fixed to the reduced portion of the stem.

Signed by me at Ottumwa, Iowa, this 30th day of March, 1901.

MARTIN HAR'DSOCG.

Witnesses:

W. A. WORK, EMUEL A. WORK. 

